Cita APA (7a ed.)

Dobson, J. M., & Sedwick, F. (1981). Conversation in english points of departure. Atlantis.

Cita Chicago Style (17a ed.)

Dobson, Julia M., y Frank Sedwick. Conversation in English Points of Departure. USA: Atlantis, 1981.

Cita MLA (8a ed.)

Dobson, Julia M., y Frank Sedwick. Conversation in English Points of Departure. Atlantis, 1981.